I have an accordion whose contents are supposed to be provided by a repeater , which is repeating over an ArrayCollection. The collection is identified as Bindable in my AS3 and is changed from the outside (mate injection). However when these changes occur to the collection they are reflected in the accordion. I have debugged and verified that the collection length is greater than 0. But the accordion simply does not care and sits empty laughing at me. Here is the criminal code. Flex elites , please prosecute to the fullest extent of the law !

You are right. After examining further evidence regarding the "modus operandi" of the repeater. It was found that repeaters don't repeat unless they are told to by someone higher up in the organization. Usually by signaling "{repeater.currentItem.name}".